Safety-bung



G. DOBMEIER.

SAFETY BUNG.

1,353,732. PatentedSept. 21,- 1920.

f/Y VENTQR BY Za/a ATTO/wm@ UNHTED STAT GEORGE DQBMEIER, or BUFFALO, New roma. o i

SAFETY-SUNG.

Specicaton of Letters Patent. Patented 251i, 1.920,

Application-filed September 26, 1919. Serial No. 326,550.

' in and prevents the barrel from bursting.

vThe object of this invention is to provide a safety bung forthis purpose which is reliable in operation, capable of being used in connection with any ofthe standard forms of barrels or other receptacles and which can be produced at low cost and easily adjusted' to relieve the pressure in a barrel at a predetermined point.

In the accompanying drawings:

Figure 1 is a vertical section of afsafety bung embodying one form of my invention,

the section being taken on line 1--1, Figs. Fig. 2 isa side elevation ofv the same.v Fig. 3 is a top plan view thereof., Figs. 4, 5, 6 and 7 arek detached perspective views of the transverse retaining member, follower, body and annular band forming part of my invention. j

Similar charactersy of reference referto like parts throughout the several views.

10v represents the body of the bung Vwhich is preferably constructed ofjwood and has its kperiphery constructed of 'inwardly taper.

ing form so that when 4driven into the bung f hole 11 of the barrel or cask'12, or other receptacle intended to Areceive the same the body will be held therein by friction in the usual manner of holdingvbungs in Lplace.

Extending. lengthwise` through thefbody y' is 'a passage, the inneror rear part 13 of which is comparatively narrow while the outer jpart'14 ofthejsame is wide or enlarged forming an outwardly facing valve seat 15 which 1s preferablyy provided with a packing ring or gasket 16.

Arranged within the enlarged part of the passage and movable toward and fromthe seat is a valve 17, preferably in the form 'of a disk, for controlling the passage or ort of the bung. This valve is yieldingly eld against'its seat by a spring 18 arranged in the enlargement 14 and bearing at its inner.

. end against the outer'side of the valve while OFFICE.; i

its outer endV bears against the follower 19 preferably of disk form which isl arranged in the outer part of the passage.

l Across the outer end of the body and the follower is arranged atransverse retaining member which serves to holdthe follower in f place this member. being preferably constructedof two parallel wires20, 20' which are seated in a pair of transverse grooves 21 formed in the outer end of the body and also in a pairbof transverse grooves 22 formedV in the outerside of the follower, thereby holding these several parts against displacement relatively to each other in a ldirection perpendicular to the length of the retaining wires. Y v

Around the outer part ofthe periphery of the body, is arranged a band 28 preferably of wire which is seated in an annular groove 24 in' the body for confining this band in place on the body. The opposite endsof the retaining .memberC are connected with diametrically opposite sides of the band in such manner that these parts may bedetached to permit of removing'` the spring Y from the body .and replacing the same by 1 j oneof greater orv less strength and thus permit of adapting the resistance of the valve to the pressure it is desired'to maintain vin the barrel. This detachablev connection preferably consists of a loop 25 connecting two corresponding ends of the retaining wires 20 and passingV around an ear 26 formed onthe band -by twisting together a` portion of the wireifrornwhich this band is constructed while the opposite, ends of these retaining ,wires are constructed "to form hooks 27 which Vare passed'around an earv 28 formed on' `theV diametrically `opposite part 'of the band by twistingtogether an-Y other part of thewirevof this band, as shown in Figs. V1, 2, 3, 4 and r7.

When a bung of his construction-is-ap# plied to the barrel the pressure willv be held therein until the tension of the spring is ex` ceeded and then the valve will beopenedvautomatically and permit the excess 'pressure to escape, thus preventing the barrely from bursting. When pressure in the barrel has been again reduced to normal the valve is vclosed automatically by the spring without permitting any external air to enter the barrel, which otherwise might impair the con- 7 tents of the barrel, but instead preserving the same in a pure condition.

A device of this character enables the contents of the barrel to developk naturally and in the best condition without liability of losing the saine or impairing its qualities as would be liable to occur if no safety means were provided to relieve any eXcess pressure on the barrel. Y

I claim as my invention:

l. A safety bung comprising a body adapted to be placed in a bung hole and provided with a longitudinal passage the inner part of which is narrow Vand the outer part wider forming an outwardly facing valve seat between the narrow and wide parts of said passage, a longitudinally movable valve arranged in the outer wide part of said passage and engaging said seat, a spring arranged on the wide part oi' said passage and engaging its inner end wi-th said valve, a follower vengaging with the'outer end of said spring, aV retaining member arranged transversely on the `outer end of said body and .engaging said follower, and a band secured around the outer end of .the periphery of said body and connected yon diamotrically opposite sides with opposite ends of said retaining member.

2. ffii-safety bung comprising a body adapted Ato be placed in a bung hole and provided with a longitudinal passage the inner .part of which is narrow and the outer part wider forming an outwardly facing valve seat between the narrow and wide parts of said passage, a. longitudinally movable valve arranged in theouter wide part oft said passageand yengaging said seat, a spring ar- Y ranged in the wide part of said passage Vand engaging its inner end with said valve, a follower engaging with the outer end of said spring, a retaining member arranged transversely on the outer end of said bod and engaging said follower, and a band se- Vcured around the .outer end of the periphery- ,of said body and connected onY dia-inetricaliy opposite sides with opposite ends oi said retaining member, the outer end ot said body 'beine' O'rooved and forming a depressed seat Y 2D 2D 2:7 L Y for said retaining member.

3. A safety bung comprising a body adapted to be placed in a. bung hole and provided with Va :longitudinal passage the inner part of which is narrow and the outer part wider Y forming an outwardly facing valve seat between the narrow and wide parts ol' 'said p'assage,'a longitudinally movable valve arranged in the outer wide part of said passagerand .engaging saidiseat, a yspring arranged onthe wide part of said passage and engaging its inner end with said valve, Va

follower engaging with the outer end olf said spring, a retaining member arranged transversely on the outer end or said body and engaging said follower, and a band secured around the outer end of the periphery of said body and connected on diainetrically opposite sides with opposite ends of said retaining member, the outer part ot the periphery of said body being provided with an annular groove which receives said band.

1. A safety bung comprising a body adapted to be placed in a bung hole and provided with a longitudinal passage the inner part of which is narrow and the outer part wider 'forming an outwardly facing valve seat between the narrow and wide parts of said passage, a longitudinally movable valve arranged in the outer wide part of said passage aiid engaging said seat, a spring arranged on the wide part of said passage and engaging its inner end with said valve, a follower engaging with the outer end oi' said spring, a retaining4 member arranged transversely on the outer end -of said Vbody and engaging said follower, and a band secured around the outer end of the'periphery of said body andconnected on diainetrically opposite 4sides withv opposite ends of said retaining member, theouter end of said body and the outer side of said follower being groove-d to receive said transverse retaining iember. Y 'Y 1 A safety bung comprising a body adapted to be placed ina bung hole and provided with 'a longitudinal passage the inner part of :which is narrow and the outer part wider forming outwardly facing valve seat between tlie narrow ,and wide parts ol' said passage, a longitudinally movable valve arranged inthe outer wide part oi" said iassage and engaging said seat,a spring ai'- ranged on the wide part or'1 said passage and engaging its inner end withV said valve, a

follower engaging with the outer end of said spring, va"retaining member arranged transversely on `the outer end of said body and engaging said follower, and a band secured around the outer end ol2 the periphery of said body and connected von diametrically opposite Vsides with opposite Vends of said re` tai-ning member, the ou-terpart ot the periplieryoia said body being provided with an annular groove whiclireceives said band, and the Louter liend of said body being provided with a groove whichl receives said re-` taining member. v

encuen' Bonnema. 

